Cheap flights from Houston to New York from $116

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to New York departing on 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Frontier Logo
8:37 pm - 10:37 amIAH-ISP
13h 00m1 stop
Frontier Logo
9:47 pm - 7:04 amISP-IAH
10h 17m1 stop
$158Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
Frontier Logo
4:36 pm - 10:55 amIAH-ISP
17h 19m1 stop
Frontier Logo
11:25 am - 3:04 pmISP-IAH
28h 39m1 stop
$169Frontier
Find Deal
Wed, Oct 1 - Sun, Oct 5
Frontier Logo
8:37 pm - 10:37 amIAH-ISP
13h 00m1 stop
Frontier Logo
9:47 pm - 7:04 amISP-IAH
10h 17m1 stop
$190Frontier
Find Deal
Thu, Oct 16 - Sun, Oct 19
Frontier Logo
8:05 am - 8:42 pmIAH-ISP
11h 37m2 stops
Frontier Logo
9:47 pm - 7:04 amISP-IAH
10h 17m1 stop
$191Frontier
Find Deal
Tue, Oct 21 - Sun, Oct 26
Frontier Logo
8:37 pm - 10:37 amIAH-ISP
13h 00m1 stop
Frontier Logo
9:49 am - 4:43 pmISP-IAH
7h 54m1 stop
$201Frontier
Find Deal
Thu, Oct 23 - Mon, Oct 27
Southwest Logo
5:20 am - 11:55 amHOU-ISP
5h 35m1 stop
Southwest Logo
5:40 am - 12:35 pmISP-HOU
7h 55m2 stops
$316Southwest
Find Deal
Fri, Dec 19 - Thu, Dec 25
Southwest Logo
4:00 pm - 11:55 pmHOU-ISP
6h 55m2 stops
Southwest Logo
5:40 am - 12:35 pmISP-HOU
7h 55m2 stops
$321Southwest
Find Deal
Fri, Dec 19 - Thu, Dec 25
Multiple Airlines Logo
7:30 pm - 10:37 amIAH-ISP
14h 07m1 stop
Multiple Airlines Logo
2:25 pm - 12:05 amISP-IAH
10h 40m2 stops
$328Multiple Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 3
Southwest Logo
5:45 pm - 11:45 pmHOU-ISP
5h 00m1 stop
Southwest Logo
5:35 pm - 11:45 pmISP-HOU
7h 10m1 stop
$348Southwest
Find Deal
Mon, Oct 6 - Thu, Oct 9
Southwest Logo
2:30 pm - 11:45 pmHOU-ISP
8h 15m2 stops
Southwest Logo
5:35 pm - 11:45 pmISP-HOU
7h 10m1 stop
$353Southwest
Find Deal
Mon, Oct 6 - Thu, Oct 9

Frontier flights from Houston to Islip

Our best Frontier deals on Houston to Islip flight tickets
Frontier
Oct 23
IAH8:37 pmHouston George Bush Intcntl
13h 00m
1 stop
ISP10:37 amIslip Long Island
Oct 26
ISP9:47 pmIslip Long Island
10h 17m
1 stop
IAH7:04 amHouston George Bush Intcntl
Frontier
Oct 1
IAH4:36 pmHouston George Bush Intcntl
17h 19m
1 stop
ISP10:55 amIslip Long Island
Oct 5
ISP11:25 amIslip Long Island
28h 39m
1 stop
IAH3:04 pmHouston George Bush Intcntl
Frontier
Oct 16
IAH8:37 pmHouston George Bush Intcntl
13h 00m
1 stop
ISP10:37 amIslip Long Island
Oct 19
ISP9:47 pmIslip Long Island
10h 17m
1 stop
IAH7:04 amHouston George Bush Intcntl

Southwest flights from Houston to Islip

Our best Southwest deals on Houston to Islip flight tickets
Southwest
Dec 19
HOU5:20 amHouston Hobby
5h 35m
1 stop
ISP11:55 amIslip Long Island
Dec 25
ISP5:40 amIslip Long Island
7h 55m
2 stops
HOU12:35 pmHouston Hobby
Southwest
Dec 19
HOU4:00 pmHouston Hobby
6h 55m
2 stops
ISP11:55 pmIslip Long Island
Dec 25
ISP5:40 amIslip Long Island
7h 55m
2 stops
HOU12:35 pmHouston Hobby
Southwest
Oct 6
HOU5:45 pmHouston Hobby
5h 00m
1 stop
ISP11:45 pmIslip Long Island
Oct 9
ISP5:35 pmIslip Long Island
7h 10m
1 stop
HOU11:45 pmHouston Hobby

momondo Fare Finder

 
Customize your flight search to find flights from Houston to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Houston to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 10/23

8:37 pm-10:37 am

1 stop13h 00m

Islip Long Island

Sun 10/26

9:47 pm-7:04 am

1 stop10h 17m

$158

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Wed 10/1

4:36 pm-10:55 am

1 stop17h 19m

Islip Long Island

Sun 10/5

11:25 am-3:04 pm

1 stop28h 39m

$169

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 10/16

8:37 pm-10:37 am

1 stop13h 00m

Islip Long Island

Sun 10/19

9:47 pm-7:04 am

1 stop10h 17m

$190

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Tue 10/21

8:05 am-8:42 pm

2 stops11h 37m

Islip Long Island

Sun 10/26

9:47 pm-7:04 am

1 stop10h 17m

$191

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Thu 10/23

8:37 pm-10:37 am

1 stop13h 00m

Islip Long Island

Mon 10/27

9:49 am-4:43 pm

1 stop7h 54m

$201

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Fri 12/19

5:20 am-11:55 am

1 stop5h 35m

Islip Long Island

Thu 12/25

5:40 am-12:35 pm

2 stops7h 55m

$316

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Fri 12/19

4:00 pm-11:55 pm

2 stops6h 55m

Islip Long Island

Thu 12/25

5:40 am-12:35 pm

2 stops7h 55m

$321

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Fri 10/31

7:30 pm-10:37 am

1 stop14h 07m

Islip Long Island

Mon 11/3

2:25 pm-12:05 am

2 stops10h 40m

$328

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Mon 10/6

5:45 pm-11:45 pm

1 stop5h 00m

Islip Long Island

Thu 10/9

5:35 pm-11:45 pm

1 stop7h 10m

$348

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Mon 10/6

2:30 pm-11:45 pm

2 stops8h 15m

Islip Long Island

Thu 10/9

5:35 pm-11:45 pm

1 stop7h 10m

$353

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Houston to Islip

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Islip?

On average, the least expensive day to fly to Islip from Houston is on a Thursday. momondo users have found tickets for Thursday departures for as low as $375. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Houston to Islip on a Tuesday will generally be more expensive and average around $601. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Islip?

Flying to Islip from Houston in the morning is the least expensive time of day to depart. momondo users have found prices as low as $370 when looking at flights departing in the morning. Flights in the afternoon are often more expensive with an average ticket price of $396.

Cheap Houston to Islip flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Islip

Direct flights

None
There are no direct flights from Houston to Islip. There are no popular flight routes from Houston to Islip.
  • How far is Houston to Islip Long Island by plane?

    Islip Long Island is 1454.8 mi away from Houston. In terms of flight time, this usually takes a little over 5h 00m.

  • When did momondo last update prices for flights from Houston to Islip Long Island Airport?

    Prices for flights from Houston to Islip Long Island Airport refresh daily.

  • How many operators does momondo search for flights from Houston to Islip Long Island Airport?

  • How old do you have to be to fly from Houston to Islip Long Island Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Houston to Islip

Compare and see reviews for airlines that fly from Houston to Islip with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $336Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

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Why use momondo?

Why should I use momondo to find a flight deal from Houston to Islip?

Finding the right flight to Islip from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Islip quick and easy, saving you time and money.

Can I find flights from Houston to Islip with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Islip from Houston with this policy.

How can momondo help me find flights from Houston to Islip?

momondo helps you find the best flight between Houston and Islip by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Houston to Islip right now. Can momondo alert me if prices change?

Price alerts on flights to Islip from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Fri 10/17
Fri 10/24

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